Troubleshooting Teleflex Ammeter Gauges

Does The Gauge Work?

Remove the gauge's sender wire. Turn on the
power. The pointer of whatever gauge you are
checking should be at the position shown in the
upper portion of the diagram below.

Next, take a short wire and connect to sender
terminal and ground terminal (shorting sender
terminal to ground).
Gauge pointer should be at the position
shown in the lower portion of the diagram.

To test senders, the resistance values are
shown at minimum and full gauge scales.

Ammeter- Direct Reading

Be certain all connections are clean
and tight. If possible, solder heavy
gauge wires to terminal lugs before
attaching to the ammeter.

If replacing an ammeter, wire to
existing connections. If installing
an ammeter for the first time, refer
to instructions or the diagram below. The wire connection from the
alternator to the starter solenoid
must be broken or no current will
flow through the ammeter.

If the ammeter reads a discharge
when it is charging, reverse the
heavy gauge wires at the "S" and
"I" terminals.

Max. current to any Teleflex direct
reading ammeter is 60 amperes.

Wires must be 10 gauge minimum to ammeter
"S" and "I" terminals.

Wires for lighting can be 14-18 gauge. A ground
for the ammeter is needed only if lighting is
used.

The red #10 AWG wire from the "S" terminal to
the "ACC" post on the ignition switch may be
eliminated if a discharge reading is not desired
when the ignition accessory is turned on but the
engine is not running (i.e. the radio playing).

The ammeter can be tested with a multimeter
(test meter) connected as shown. Remove all
connections to the "S" and "I" terminals, taking
care not to touch those connections to any thing.
If the test meter on the ohms scale shows no
resistance the ammeter is probably OK. If it
shows infinite resistance, the gauge has failed.